Rib for gun-sights.



UNITED STATES PATENT sinnlos. EMIL FrnLUE'ls, or ITHACA, maw,arose-Ic.'y

1,169,157I speciacanon of Leiters. Patent. PatenteqiNov, 16, 1315 application and nay 2o, 191s. serial No. 29,452. f-

To allwiwm t may concern." y lug. 4, and showing the devices by which h5 A Be it known that I, EMIL F. FLUns, a the sighting rib is supported and held in ,citizen of the United States, residing at place on the barrel. Ithaca, in the county of Tompkins and State In the accompanying drawings like referof New Yprk, have invented certain newand encel numerals indicate like parts.

useful YImprovements in Ribs for Gun- Inthe drawings reference numeral 1 in- `(so Sights, of lwhich the following 1s a specilidicates a gun barrel. cation. 2 indicates a sighting rib therefor which Theobject of this invention is to provide rib extends substantially the length" of the a new and improved rib for gun sights, the barrel. At the rear of the barrel is formed rib being mounted in su'ch away so asnot to a block 3 integral with the barrel. At the 65 interfere with the lineal expansion and conforward endy this block is cut away to form traction of the gun barrel regardless of what a reduced portion 4 having a shoulder be might be the difference in temperature between said reduced portion'and the rest of l5 tween the rib and the gun barrel. The rib 1s l the block.. At the forward .end the' block is also mounted so as to be readily detached cut away at the bottoni to form a projectin 70A from the gun barrel when it is desired to re lip 5. This block is ada ted t0 enga e wit 1- move it, et it is held normally firmly in f and hold the rear end ofp the rib in p ace' on place on t e barrel. The rib is also 1nount. the ban-e1,A J

led so as to preserve good' ventilation between 0n the barrel is formeda Series of blocks it and. the barrels@ that the rib ywill vnot such asis-illustrated at 6 in Fig. 2. These 75. heat up, it being understood that thebar'- blocks are all solid and their'only function rels of-rifles and shot guns to which it 1s apis` to support the rib andk hold it in-alineplied do heat up when fired rapidly somevment on the barrel. They dol not have' a times as much as 300D above the surroundlocking function, the locking function being ing air. This heating 0f the )0& 11'61 S6115 the performed by other blocks that will now be 80A ail' yalong and above thebarrel 1n vlbration described. Interspersed with these blocks with heilt? WllVeS which Vibrations lliiel'fele are the blocks whih are numbered. 7, 8, 9v

with the sighting of the gun in the absence and 10, A

of the rib. The rib is so mounted that 1t TheV gylocks 8, 9 and 10 are each formed will not heat up but will remain cool and with a projecting lip at the top, which lips 85 will therefore not set up'any heat waves on project backward s Shownn blQC-kggand n its 0WD 110001131; and Will deflect. the heat forward as appears in t-iock 9. The f WBVBS that are Set 11p by the hilngoflle is also provided with a rearwardlyfproject'i barrel so that the air above the s1 htlng'rib inglip at the top. The block is alsoperfo-Y i will remain stillandpermltg Sighting rated longitudinally, the biockvbeimgborea so' of the gun. A outJ from front toward the'rear with a large a I These and other ol'ects of the invention opening leaving a shoulder near the rear y vWill be fully HUStIatedDfth dlVYlIlgS, de* end of the block through` which extends a 4o 'scribed in the 'specification and pointed out small Opening, which opening is unser the y in the claims at the end thel'ofrearwardly extending lip of the block. In 95 In the drawings, Figure 1 is aiside eleyuthis opening a pin 11 extends through the tion of a' gun barrel provided with niy imblock, AS Shgwn in Fig, 5 the pin 1.1 is Y proved rib. Fig. 2 isa v,perspective View of 'large at one end and is reduced at the other the forward part of the gun barrel showing end and has a rounded head 13 thereon. It

the rib removedtherefroin andv turned on 'is slottedas indicated at 14 and through this 100 its side.' Fig-3 is a perspective View of the slot passes a vpin 15 which is rigid in' the rear part of the gun barrel vwith the rib reblock, which holds the pin l1 in place in the moved therefrom and turned on its side. block and limits the travel thereof. The' Fig. 4 is a perspective view of the gun barsmall endof the pin 11 'extends clear rel showing a portion of the rib thereon through the block and proJects under the 105Y partly broken away. Figs. 5,- 6 and `7 are lip at thejrear end thereof. Surrounding vertical sections'through the gun barrel, the 'the reduced end of the pinll and held 1n sections being taken on the line 5"- X of place between the large end of the pm and the shoulder 16, formed in the block, is the spring 12 which presses the pin forward and holds it normally in the position shown in Fig. 5. The block 7 is the only block of/ thv se 'mounted on the gun barrel that is. perforated and provided with a sliding pin.-

' 'The sighting rib 2 consists of a channel shaped bar having a series of'blocks 17 fasl tened therein at suitable intervals to correspond with the placing of' the blocks 7 78,5-9, 10' and 3 sighting ribin place on'the'barrel in the manner that will now be described. Each of. bored out to form an opening1 these blocks is therein leaving a shoulder 18 at one en small ov enn contacts with the end as to extend i, thereof, through 4which shoulder passes a In each of j these blocks .isv

mounte to ide a p'in '19 havin a small shank and a large head, the vhead orming asqure shoulder with the shank. Between 1 he 'head of the pin and the shoulder in the block is held a spring 2O which expands and n ioves the head of the pin away from the shoulder of the block. The small end of the .pin is perforated transversely and pin 21'in said perforations, which pin'Q/l the travel of the pin 19, due 'to of the pin is rounded and is positioned: so

'- so as to be partially exposed. Each'ofthese blocks 7, 8, 9,

which they are inte'ded to coperate. 4

"As shown in Figs..2 'and 5 the block at the forward end of the'sighting rib", that is at the l it.

hand'end of the'gun barrel, is

' positioned to abut.v directly'l against .the lip do"l "on the barrel has its projecting lip extend- -in rearward and the block '17 von the rib at.I the rear 'end of' the block4 7' so that the"A large end of the' pi'n 19 will project forv wardly l'and engage under the lip formed at .the rear end. ofl-the block. 7; A similar block 17 will be positioned in the sighting rib with reference to the block 8 on the' gun b'arrel so that the ,large head will engage under the rearwardly projecting lip of the.

block 8. A similar block 17 will be positioned on the sighting rib with reference to the block 9 on the gun barrel and as the block 9 has a forwardly projecting lip the,

block 17 will be `posltioned in the channel of the sightingv rib forwardof theblockv 9 with the large head ofthe pin projecting The block 10 rearwardy from the block 1 wi1"be placed to correspond withl ,the big head of thepin projecting "forward,l For the block 4 at the rear endof the barrel jp:

` of the gun-barrel with which the A' "-blocksv serve to cooperate for holding the has a.

of the lblock and limits j the expansion in of the spring 20. The outer end of-thehead' slightly outside of 'the Abloels 10 and 3 'are alike intheforegoing respects and are placed'in the-channel.' of the sighting rib with the rounded.headsz -of their pins 19. pointing forward orba y lto correspond with the positionof the proa' jecti'ng lips ofthe blocks on the barrel with j ri with a spring pressed'pi'n havinga rearardly projecting head to engage therewith.

It will be seenthat the pins 19 are placed so that some of the'm tend to push the sighting rib in one direction and the others tend to' push the sighting rib in the other directionand between-these spring pressed pins 19 the sighting rib is held firmly in suspen- .sion on the gun barrel'. These pins can yield when the'barrel heats and expands, due to rapid tiring and by yielding any interfer- "ence with he expansion ofthe barrel and 'conseiient distortion thereof is avoided.

Su cient clearanceis provided between the intermediate blocks on the` gun barrel and the 'corresponding blocks on the rib so that the' pwill'not corne directly inI contact v.with eac' other, but they will be connected only'b lthe pins.17. 'j

As. own in the several figures the blocks 7, 8, 9 and 10 are'cut` awa-y below the projecting'l lips -with a Slo ing surface so that when ,the rounded hea s of the pins 19 engage; under the projecting lips they have ample room below 'so' they can o rmly to lace under 'theli'ps, the heads o the pins 19 einsiiitablyrounded tovfacilitate the seatit ser.; f l

ler convenience. the pins 19` may be referredto4 as latches or vbolts and the blocks .they 'coperate,. may be described as having recessed nds 'with which said pinsj'are ladaptedt'"enga p H In o' eration t `e rib is applied to the barcliV -relwit "the block '17' at the rear end thereof 'nearlyabuttin against the lip of the block 4, and thesli 'ng ginengagin under the lip c rff'said,Block.v` herib .ist en lowered intoA contact 0with theharrel throu houtvthe -'whole length thereo'wi'th thesli in ins "engagingl with the projecting. lips. o t eir -respcdve bloclcsv on the. b The blocky 17, atg'ythe forward end of,:, 'rib 'enga with lthe rejecting 'p ofte barre respective .blockson the barrel-and hold the rib in place permitting either a variableor equal expansion of the 'of theyblock; 'at e, front. All ,of thelpin 419 on the blocks .17 'simultaneously engage? with their einen; 17-wii1 be provided Qn designing 7,8, Q and 10 etci, on thebarrel with which` out'its length without interference therewlth from `the rib. The spring pre on the rib yieldingly com pension of the'barrel whi e they stilln'min .Ss'd Pins 19 nsate for themextain eii agement therewith. l Itgwll, bg

der'stoo lengthen asin'uch the no lengthening of the sightin that, a. a4 inch ramal 'willi f; of anfi'nch wh: gun is being .rapidly amd. 'with little;l

it. isvdesir'edpto remove the-'stig tin'grib the pin'll;` will be 'pressed' Y rear end of the pin 11 will enga e wat the 'pin 19, q

nd ushfitaway from e projecting li ofthe and permitjthe forward'el the gun barrel throu hhaving spring pressed sighting rib to be moved vertically to disengage it from .the block 7 after which the sighting rib may be readily pulled from the remaining blocks on the barrel. Y

The shape of the heads of the pins 19 is such as to cause their disengagement from the projecting lips with a slight'puli but it will be understood that the engagement between the pin at the forward end of the sighting rib and the block 7 is greater than the engagement between the other blocks 8, 9, 10, etc. This engagement being sufficient to prevent any displacement of the sighting rib by a vertical pull thereon Iunless the pin 11 is pushed in.

I claim: 1

1. The combination of a gun barrel and a sighting rib therefor, yielding connections between said .rib and said barrel by which said rib is held positively in place, said connections permitting the removal of said rib from said barrel at will.

2. The combination of gun barrel and a slghting'rib therefor, yielding connections etween said rib and said barrel by which said rib is held positively in place, said ccnnections permitting the removal of said rib from said barrel atrwill, said connections permitting the baX tract 'at will Withuh from said rib. r f' y A 3. The combinationfof a gun barrel havinterference therewith i ving recessed blocks thereon, a sighting rib having spring/pressed pins thereon adapted to engage with the recessed blocks on the -barrel and hold the rib in place thereon,

'4. The combination of a gun barrel having recessed blocks thereonna sighting rib pins thereon adapted to engage With the recessed blocks on the barrel and hold the rib in' place pins and the` llrto expand and conthereon,

from its block to permit the removal of the rib from the gun.

5. Thecombination of a gun barrel having recessed blocks'thereon, a sighting rib having spring pressed pins vextending longitudinally recessed blocks on the barrel, some of said pins pressing forwardly on said blocks and others of said pins pressing' rearwardl' on said blocks, said rib being held suspended on said barrel by said pins.

6. The combination of a gun barrel having recessed blocks thereon, a sighting rib having spring pressed pins thereon adapted to engage with the recessed blocks on the barrel and hold the rib in place thereon, blocks intermediate said" recessed blocks for supporting said rib and holding it in alinement.-

7'. The combination of a gun barrel hav ing recessed blocks thereon, a sighting rib having spring pressed pins thereon adapted to engage With the recessed blocks on the barrel and hold pin at the end of the rib having a greater engagement With its block on the barrel than the remaining pins have with their blocks, a pin in the end block on the barrel adapted to push the end pin on the rib out of engagement with the end block on the barrel to permit the removal of the rib from the gun.

In testimony whereof I affix my signature in presence of two witnesses EMIL F. FLUES. vWitnesses:

Eme IscmNens, EDNA K. BOOTH.

means for disengaging said end pin therein adapted to engage with the the rib in place' thereon, the Y 

